WowAce

Improved Questing Experience

Collects Herbs, Mines, Gas Clouds, Archaeology, Treasure and Fishing locations and adds them to the worldmap and minimap

Callback handling Library, normally embedded inside other libraries

Embeddable chat throttling library with traffic shaping and priorities

An intuitive keybindings library.

A library that handles the basics of "window" style frames

In-game EPGP guild helper, supports standby, main/alt shared pools, minEP, offpecGP. Fixed price list with progress multiplier.

Tells you the Tiller, what food they like, and if you have fed them today for the quests A Dish for ...

Plugs classical world style fonts into LibSharedMedia-3.0

Displays information about the current zone on the World Map for WoW Classic Era

Good old LibTourist-3.0 for WoW Classic Era

Display auras on action buttons.

Postal: Enhanced Mailbox support

Adds countdown voices from the heroes in Overwatch to BigWigs.

Adds a Button to the Worldmap which toggle Handynotes

Reno is a slash-command that can patch predefined options in a macro to change which abilities will be chosen.

Mutt (Macro Update Target Tool) provides slash-commands that can patch the predefined targets in your macros.

mount and companion manager

Adds countdown voices from Heroes of the Storm to BigWigs for all supported locales.

A helper addon for the achievements "Let It Snow", "Fistful of Love", "Shake Your Bunny-Maker", "Check Your Head", and "Turkey Lurkey"